| About this Abstract |
| Meeting |
2010 TMS Annual Meeting & Exhibition
|
| Symposium
|
2010 Functional and Structural Nanomaterials: Fabrication, Properties, Applications and Implications
|
| Presentation Title |
Electrical Conductance of Single TiO2 Nanotube Devices |
| Author(s) |
Jie Huang, Dongkyu Cha, Mingun Lee, Moon J. Kim, Jiyoung Kim |
| On-Site Speaker (Planned) |
Jie Huang |
| Abstract Scope |
Titanium dioxide (TiO2) nanotubes attract increasing attention because of their wide range of potential applications: photocatalysts, gas sensors, solar cells and bio-sensors, etc. In our research, TiO2 nanotubes were fabricated using atomic layer deposition (ALD) combining with an anodic aluminum oxide (AAO) template technique. Materials characterization was done by both XRD and TEM. Single nanotube devices were made by focus ion beam (FIB) as well as e-beam lithography. As fabricated TiO2 nanotubes with different wall thicknesses were annealed either in vacuum or O2 with various temperatures in order to control the oxygen vacancy doping rate. Conductivity was measured by both four-probe measurements and in-situ characterization in TEM. In this presentation, we will also propose a potential conduction mechanism. This research was supported by a grant (code #: 2009K000469) from 'Center for Nanostructured Materials Technology' under '21st Century Frontier R&D Programs' of the Ministry of Education, Science and Technology, Korea. |
| Proceedings Inclusion? |
Undecided |